Power Seat Control Unit Input Test
WARNING: This page is about a different car, the 2008 Acura TSX, 2007 Acura TSX, 2006 Acura TSX, 2005 Acura TSX, and 2004 Acura TSX. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Before troubleshooting the DPMS, troubleshoot the multiplex integrated control system first using B-CAN System Diagnosis Test Mode A (see
TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A
).
- Turn the ignition switch OFF.
- Remove the driver's power seat (see
FRONT SEAT REMOVAL/INSTALLATION
).NOTE: Be careful not to scratch the interior trim.
- Disconnect the connectors from the power seat control unit (A).NOTE: All connector views are from wire side of female terminals.
- Inspect the connector and socket terminals to be sure they are all making good contact.
- If the terminals are bent, loose or corroded, repair them as necessary and recheck the system.
- If the terminals look OK, go to step 5.
- Reconnect the connectors to the power seat control unit, and make these input tests at the connectors.
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, the control unit must be faulty; replace it.
POWER SEAT CONTROL UNIT INPUTCavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained A9
•
B4
•
B18BRN Under all conditions Measure the voltage to ground:
There should be less than 0.5 V.- Poor ground (G601)
- An open in the wire
A35 YEL Ignition switch ON (II) Measure the voltage to ground:
There should be battery voltage.- Blown No. 18 (15 A) fuse in the under-dash fuse/relay box
- An open in the wire
A37 WHT/RED Under all conditions Measure the voltage to ground:
There should be battery voltage.- Blown No. 15 (40 A) fuse in the under-hood fuse/relay box
- Blown No. 7 (10 A) fuse in the under-dash fuse/relay box
- An open in the wire
B1 WHT/RED Under all conditions Measure the voltage to ground:
There should be battery voltage.- Blown No. 20 (40 A) fuse in the under-hood fuse/relay box
- Blown No. 16 (20 A) fuse in the under-dash fuse/relay box
- An open in the wire
B8 WHT/BLU Under all conditions Measure the voltage to ground:
There should be battery voltage.- Blown No. 20 (40 A) fuse in the under-hood fuse/relay box
- Blown No. 14 (20 A) fuse in the under-dash fuse/relay box
- An open in the wire
A16 GRN Under all conditions Attach to ground:
The driving position memory switch indicator 1 should come on.- Blown No. 7 (10 A) fuse in the under-dash fuse/relay box
- Faulty driving position memory switch
- An open in the wire
A17 RED Under all conditions Attach to ground:
The driving position memory switch indicator 2 should come on.- Blown No. 7 (10 A) fuse in the under-dash fuse/relay box
- Faulty driving position memory switch
- An open in the wire
A18 BLU Press No. 1 button of the driving position memory switch Measure the voltage to ground:
There should be less than 1 V.- Poor ground (G601)
- Faulty driving position memory switch
- An open in the wire
A19 BLU/YEL Press No. 2 button of the driving position memory switch Measure the voltage to ground:
There should be less than 1 V.- Poor ground (G601)
- Faulty driving position memory switch
- An open in the wire
A20 WHT Press the MEMO button of the driving position memory switch Measure the voltage to ground:
There should be less than 1 V.- Poor ground (G601)
- Faulty driving position memory switch
- An open in the wire
A31 BLU/BLK Shift lever in P position Measure the voltage to ground:
There should be less than 1 V.- Faulty transmission range switch
- An open in the wire
Parking brake lever pulled Measure the voltage to ground:
There should be less than 1 V.- Faulty parking brake switch
- An open in the wire